Ophthalmic mounting



April 9, 1929. J. w. WELSH OPHTHALMIC MOUNTING Filed Feb. 19, 1923 2Sheets-Sheet l Q WVIIIIA April 9, 1929. J. W. WELSH GPHTHALMIC MOUNTINGFiled Feb. 19, 1923 2 sheets shtjaet 2 "O'IIIIA'IIIAVJ" 152 venior,James /4./1 e/5fi MM M .AiZarzz eyxthe arrows Patented Apr. 9, 1929.

UNITED STATES PATENT OFFICE.

JAMES VJ. WELSH, CF PROVIDENCE, RHQDE ISLAND, ASSIGNOR, BY MESNE ASSIGELMEETS, TO 'BA'USCH AND LOMB GIPTICAL COMPANY, OF ROCHESTER. NEW YORK,

A CORPORATION OF NE'W' YORK.

OPHTHALMIC MOUNTING.

Application filed February 18, 1923.

The present invention relates to ophthalmic mountings, particularlymountings of the non-metallic type.

The chief object of the invention is to improve n 011 present-day hingeconnections between the fronts and the temples of ophthalmic .mountingsof the above-described character. Other objects will appear hereinafter.

In the accompanying drawings, Fig. 1 is a fragmentary perspective viewof an ophthalmic mounting constructed according to a preferredembodiment of the present .invention; Fig. is a section taken upon theline E2-2 of Fig. 1, looking. inthe direction of the arrows; Fig. 3 is aperspective view, illustrating a step in the preferred method of makingthe preferred mounting of the present invention; F leis fragmentaryelevation, partly in section, along the line 4 'l: of Fig. 2, looking inthe direction of 1 5 is a fragmentary elevation of a. portion of thefront shown in Fig. 1, illustrating a step in the manufacture; Fig. 6 isa perspective view of a modified hinge, the hinge elements being showndetached; 7 is a view similar to Fig. 1 of a. modification; Fig. 8 is asection taken upon the line 88 of Fig. 7, looking in the direction ofthe arrows Fig. 9 is aview similar to Fig. 3, but corresponding to themodification shown in Fig. 7 Fig. 10 is a section similar to Fig. -fl-,the section being taken as upon the line 10-10 of Fig. 8, looking in thedirection of the arrows; and Fig. 11 is a view corresponding to Fig. 5of the modification shown in Fig. 7.

Non-metallic mountings of the character illustrated in the presentinvention are usually constituted of a non-metallic front 2 andnon-metallic temples 4. The temples are hinged at their forward ends toend pieces 6 of the front 2. he preferred temple is provided with acomparatively wide, open-ended groove 12 in which is seated a hingeplate 16.

The end piece 6 of the front 2, originally straight, as shown in Fig. 3,is provided with an open-ended groove 28 extending throughout acomparatively wide portion of the end piece 6, corresponding to the widegroove 12. A correspondingly wide hinge plate 32 is seated in the groove28. After Serial No. 619,806.

this last-named hinge plate has been mounted in the groove 28 of thestraight end piece 6, as shown in Fig. 5, the end piece 6, with thehinge element embedded therein, is bent or curved into the form shovm inFig. 1. The wide hinge plate affords a better anchoring effect of themetal in the nonmetallic material.

It is not essential, however, groove 28 in the end piece 6 or tl plate32 be as wide as shown. A u of hinge elements 38 seated in a p uralityof correspomlingly positioncd, smaller grooves 40, as ill ustratcd inFigs. T to 11, will be equally effective. The method of construction isthe same as above described. Tn these figures, too, a modification shownin the hinge element 42 of the temple, in that it is elongated toconstitute a reinforcing" rod extending throughout the length of thetemple in a longitudinal groove 43. The reinforcing rod may also beprovided upon the hinge element 16 shown in Fig. 1, as indi- :ated inFig. (3.

In both modifications, the end pieces of the fronts and the forward endsof the temples are circularly cut away at 44-, at the openings to thellingo-elemcut-receiving grooves, to receive cylindricalor barrelshapedportions 47 that are integrally provided at the ends of the hingeelements. The cylindricalor barrel-shaped portion may be gold filled orprecious metal, while the remainder ,of the hinge elements, being hiddenwithin the end pieces (3 and the temples 4, may be of basemetal. Thecylindricalor barrel-shaped portions 1 5 may be few, as shown in Figs. 1to 5 and 7 to 11, or comparatively many, as illustrated in Fig. 6. Apintle 26 pivotally connects the hinge element-s together. Thisconstruction permits the ends of the temple and of the curved end pieceto come together smoothly, as shown at QB in Figs. 1, 2, 7 and 8. Theend portions of the hinge elements 16 and 32 are flushed with theportions shown at 4L6, so as to come together at the same time, asindicated at 4:8, to constitute a metal stop for the pivotal movement ofthe temple about the pivot QGof the hinge. The cylindricalorbarrel-shaped portions if) of the hinge ele ment that is secured in thetemple shown in Fig. at, for example, are adapted to pivot in thecircularly cut-away portions 44 of the front shown in Fig. and theportion 4L5of the hinge element that is secured in the front and atemple constituted of non-metallic material having a correspondinglywide groove, the end piece and the temple being circularly cut away atthe openings to the grooves, a hinge element seated in each grooveconstituted of a plate of corresponding width and of the shape of thegroove and having a cylindrical- .or barrel-shaped portion in thecircularly cut-away portion,

and a pintle in the cylindricalor barrelshaped portion for connectingthe hinge elements together.

2. A temple having a groove extending longitudinally of the temple, thetemple being circularly cut away at the opening to the groove, and ahinge element mounted in the groove and having a cylindricalorbarrel-shaped portion in the circularly cutaway portion, the hingeelement having integral therewith a reinforcing rod that extendssubstantially throughout the length of the temple.

8. An ophthalmic mounting comprising a non-metallic front having anintegral curved end piece provided with a curved, openended grooveextending substantially throughout the width of the end piece, and

a hinge element seated in the groove constituted of a fiat plate ofcorresponding-width curved to the shape of the groove and having thefront face and the rear face, anonmetallic temple having a front face, arear face and an end face and an open-ended groove extending into theend face between the front face and the rear face, and a hinge havingtwo pivoted elements one of which is seated in each groove with the endportions of the hinge elements flush with the end faces of the front andthe temple, respectively, the hinge elements being pivoted together sothat the said end portions of the hinge elements shall constitute a stopfor the pivotalmovement ofthe temple about the pivot of the hinge. i

5. An ophthalmic mounting comprising a non-metallic front having an endpiece provided with a front face, a rear face and an end face and anopen-ended groove extending into the end face between the front face andthe rear face, a non-metallic temple having a: front face, a rear faceand an end face and an open-ended groove extending into the end facebetween the'front face and the rear face, the end piece and the templebeing circularly cut away at the openings to-the grooves, and a hingehaving two pivoted elements one of which is seated in each groove withthe end portions of the hinge elements flush with the end faces of theend piece and the temple, respectively, the hinge elements being pivotedtogether so that the said end portions of thehinge elements shallconstitute a stop for the pivotal movement of the temple about the pivotof the hinge, the hinge elements having cylindrical-or barrel-shapedportions in the cut-away portions. v

In testimony whereof, I have hereunto subscribed my name this 26th dayof January, 1923. i I

JAMES w. WELSH.

